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AG 31-011 • REFRIGERANT PIPING DESIGN
Table 46: R-22 Refrigerant Charge – SI
Kg per 30 .5 Meters of Pipe
Line Size OD
Flow Area
Suction
Line
Liquid
Line
Discharge
Line
4 .44°C
40 .56°C
60°C
mm
mm
2
24 .35 kg/m
3
1100 .79 kg/m
3
111 .65 kg/m
3
12
94
0.07
3.15
0.32
15
151
0.11
5.07
0.51
22
312
0.23
10.47
1.06
28
532
0.39
17.85
1.81
35
811
0.60
27.21
2.76
42
1148
0.85
38.52
3.91
54
2519
1.87
84.52
8.57
67
3079
2.29
103.31
10.48
79
4935
3.66
165.58
16.79
92
5944
4.41
199.43
20.23
105
7727
5.73
259.26
26.30
130
12042
8.94
404.03
40.98
156
17311
12.85
580.82
58.91
206
30238
22.44
1014.55
102.90
Refrigerant weight per 30.5 meters of pipe is based on 40.56°C condensing
temperature, 60°C discharge temperature, and 4.44°C saturated suction
temperature.
Table 47: R-134a Refrigerant Charge – SI
Kg per 30 .5 Meters of Pipe
Line Size OD
Flow Area
Suction
Line
Liquid
Line
Discharge
Line
4 .44°C
40 .56°C
60°C
mm
mm
2
16 .82 kg/m
3
1120 .17 kg/m
3
87 .46 kg/m
3
12
94
0.05
3.21
0.25
15
151
0.08
5.16
0.40
22
312
0.16
10.65
0.83
28
532
0.27
18.16
1.42
35
811
0.42
27.69
2.16
42
1148
0.59
39.20
3.06
54
2519
1.29
86.01
6.72
67
3079
1.58
105.13
8.21
79
4935
2.53
168.49
13.16
92
5944
3.05
202.94
15.85
105
7727
3.96
263.82
20.60
130
12042
6.17
411.15
32.10
156
17311
8.87
591.05
46.15
206
30238
15.50
1032.41
80.61
Refrigerant weight per 30.5 meters of pipe is based on 40.56°C condensing
temperature, 60°C discharge temperature, and 4.44°C saturated suction
temperature.
Table 48: R-410A Refrigerant Charge – SI
Kg per 30 .5 Meters of Pipe
Line Size OD
Flow Area
Suction
Line
Liquid
Line
Discharge
Line
4 .44°C
40 .56°C
60°C
mm
mm
2
35 .40 kg/m
3
934 .80 kg/m
3
201 .35 kg/m
3
12
94
0.10
2.68
0.58
15
151
0.16
4.30
0.93
22
312
0.34
8.89
1.91
28
532
0.57
15.16
3.26
35
811
0.88
23.11
4.98
42
1148
1.24
32.71
7.05
54
2519
2.72
71.77
15.46
67
3079
3.32
87.73
18.90
79
4935
5.32
140.61
30.29
92
5944
6.41
169.36
36.48
105
7727
8.34
220.16
47.42
130
12042
12.99
343.11
73.90
156
17311
18.68
493.24
106.24
206
30238
32.63
861.56
185.58
Refrigerant weight per 30.5 meters of pipe is based on 40.56°C condensing
temperature, 60°C discharge temperature, and 4.44°C saturated suction
temperature.
Table 49: R-407C Refrigerant Charge – SI
Kg per 30 .5 Meters of Pipe
Line Size OD
Flow Area
Suction
Line
Liquid
Line
Discharge
Line
4 .44°C
40 .56°C
60°C
mm
mm
2
27 .07 kg/m
3
1035 .59 kg/m
3
138 .40 kg/m
3
12
94
0.08
2.97
0.40
15
151
0.12
4.77
0.64
22
312
0.26
9.85
1.32
28
532
0.44
16.79
2.24
35
811
0.67
25.60
3.42
42
1148
0.95
36.24
4.84
54
2519
2.08
79.51
10.63
67
3079
2.54
97.19
12.99
79
4935
4.07
155.77
20.82
92
5944
4.90
187.62
25.07
105
7727
6.38
243.90
32.60
130
12042
9.94
380.10
50.80
156
17311
14.28
546.42
73.03
206
30238
24.95
954.46
127.56
Refrigerant weight per 30.5 meters of pipe is based on 40.56°C condensing
temperature, 60°C discharge temperature, and 4.44°C saturated suction
temperature.